;;;                 COPYRIGHT NOTICE
;;;  
;;;  Copyright (C) 2007 Mario Rodriguez Riotorto
;;;  
;;;  This program is free software; you can redistribute
;;;  it and/or modify it under the terms of the
;;;  GNU General Public License as published by
;;;  the Free Software Foundation; either version 2 
;;;  of the License or (at your option) any later version. 
;;;  
;;;  This program is distributed in the hope that it
;;;  will be useful but WITHOUT ANY WARRANTY;
;;;  without even the implied warranty of MERCHANTABILITY
;;;  or FITNESS FOR A PARTICULAR PURPOSE. See the 
;;;  GNU General Public License for more details at
;;;  http://www.gnu.org/copyleft/gpl.html

;;; File implicit3d.lisp contains data needed by routine implicit3d
;;; of the draw package. It defines the *i3d_triangles* array: groups
;;; of three voxel edges containing the vertices of the 3d triangles.

;;; Table was taken from the public domain cpp code:
;;; http://local.wasp.uwa.edu.au/%7Epbourke/geometry/polygonise/marchingsource.cpp
;;; by Cory Bloyd (corysama@yahoo.com)

;;; For questions suggestions bugs and the like feel free
;;; to contact me at
;;; mario @@@ edu DOT xunta DOT es
;;; http://www.telefonica.net/web2/biomates

(defvar *i3d_triangles*
  '#(#(-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(0 8 3 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(0 1 9 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(1 8 3 9 8 1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(1 2 10 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(0 8 3 1 2 10 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(9 2 10 0 2 9 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(2 8 3 2 10 8 10 9 8 -1 -1 -1 -1 -1 -1 -1)
     #(3 11 2 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(0 11 2 8 11 0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(1 9 0 2 3 11 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(1 11 2 1 9 11 9 8 11 -1 -1 -1 -1 -1 -1 -1)
     #(3 10 1 11 10 3 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(0 10 1 0 8 10 8 11 10 -1 -1 -1 -1 -1 -1 -1)
     #(3 9 0 3 11 9 11 10 9 -1 -1 -1 -1 -1 -1 -1)
     #(9 8 10 10 8 11 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(4 7 8 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(4 3 0 7 3 4 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(0 1 9 8 4 7 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(4 1 9 4 7 1 7 3 1 -1 -1 -1 -1 -1 -1 -1)
     #(1 2 10 8 4 7 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(3 4 7 3 0 4 1 2 10 -1 -1 -1 -1 -1 -1 -1)
     #(9 2 10 9 0 2 8 4 7 -1 -1 -1 -1 -1 -1 -1)
     #(2 10 9 2 9 7 2 7 3 7 9 4 -1 -1 -1 -1)
     #(8 4 7 3 11 2 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(11 4 7 11 2 4 2 0 4 -1 -1 -1 -1 -1 -1 -1)
     #(9 0 1 8 4 7 2 3 11 -1 -1 -1 -1 -1 -1 -1)
     #(4 7 11 9 4 11 9 11 2 9 2 1 -1 -1 -1 -1)
     #(3 10 1 3 11 10 7 8 4 -1 -1 -1 -1 -1 -1 -1)
     #(1 11 10 1 4 11 1 0 4 7 11 4 -1 -1 -1 -1)
     #(4 7 8 9 0 11 9 11 10 11 0 3 -1 -1 -1 -1)
     #(4 7 11 4 11 9 9 11 10 -1 -1 -1 -1 -1 -1 -1)
     #(9 5 4 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(9 5 4 0 8 3 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(0 5 4 1 5 0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(8 5 4 8 3 5 3 1 5 -1 -1 -1 -1 -1 -1 -1)
     #(1 2 10 9 5 4 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(3 0 8 1 2 10 4 9 5 -1 -1 -1 -1 -1 -1 -1)
     #(5 2 10 5 4 2 4 0 2 -1 -1 -1 -1 -1 -1 -1)
     #(2 10 5 3 2 5 3 5 4 3 4 8 -1 -1 -1 -1)
     #(9 5 4 2 3 11 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(0 11 2 0 8 11 4 9 5 -1 -1 -1 -1 -1 -1 -1)
     #(0 5 4 0 1 5 2 3 11 -1 -1 -1 -1 -1 -1 -1)
     #(2 1 5 2 5 8 2 8 11 4 8 5 -1 -1 -1 -1)
     #(10 3 11 10 1 3 9 5 4 -1 -1 -1 -1 -1 -1 -1)
     #(4 9 5 0 8 1 8 10 1 8 11 10 -1 -1 -1 -1)
     #(5 4 0 5 0 11 5 11 10 11 0 3 -1 -1 -1 -1)
     #(5 4 8 5 8 10 10 8 11 -1 -1 -1 -1 -1 -1 -1)
     #(9 7 8 5 7 9 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(9 3 0 9 5 3 5 7 3 -1 -1 -1 -1 -1 -1 -1)
     #(0 7 8 0 1 7 1 5 7 -1 -1 -1 -1 -1 -1 -1)
     #(1 5 3 3 5 7 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(9 7 8 9 5 7 10 1 2 -1 -1 -1 -1 -1 -1 -1)
     #(10 1 2 9 5 0 5 3 0 5 7 3 -1 -1 -1 -1)
     #(8 0 2 8 2 5 8 5 7 10 5 2 -1 -1 -1 -1)
     #(2 10 5 2 5 3 3 5 7 -1 -1 -1 -1 -1 -1 -1)
     #(7 9 5 7 8 9 3 11 2 -1 -1 -1 -1 -1 -1 -1)
     #(9 5 7 9 7 2 9 2 0 2 7 11 -1 -1 -1 -1)
     #(2 3 11 0 1 8 1 7 8 1 5 7 -1 -1 -1 -1)
     #(11 2 1 11 1 7 7 1 5 -1 -1 -1 -1 -1 -1 -1)
     #(9 5 8 8 5 7 10 1 3 10 3 11 -1 -1 -1 -1)
     #(5 7 0 5 0 9 7 11 0 1 0 10 11 10 0 -1)
     #(11 10 0 11 0 3 10 5 0 8 0 7 5 7 0 -1)
     #(11 10 5 7 11 5 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(10 6 5 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(0 8 3 5 10 6 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(9 0 1 5 10 6 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(1 8 3 1 9 8 5 10 6 -1 -1 -1 -1 -1 -1 -1)
     #(1 6 5 2 6 1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(1 6 5 1 2 6 3 0 8 -1 -1 -1 -1 -1 -1 -1)
     #(9 6 5 9 0 6 0 2 6 -1 -1 -1 -1 -1 -1 -1)
     #(5 9 8 5 8 2 5 2 6 3 2 8 -1 -1 -1 -1)
     #(2 3 11 10 6 5 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(11 0 8 11 2 0 10 6 5 -1 -1 -1 -1 -1 -1 -1)
     #(0 1 9 2 3 11 5 10 6 -1 -1 -1 -1 -1 -1 -1)
     #(5 10 6 1 9 2 9 11 2 9 8 11 -1 -1 -1 -1)
     #(6 3 11 6 5 3 5 1 3 -1 -1 -1 -1 -1 -1 -1)
     #(0 8 11 0 11 5 0 5 1 5 11 6 -1 -1 -1 -1)
     #(3 11 6 0 3 6 0 6 5 0 5 9 -1 -1 -1 -1)
     #(6 5 9 6 9 11 11 9 8 -1 -1 -1 -1 -1 -1 -1)
     #(5 10 6 4 7 8 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(4 3 0 4 7 3 6 5 10 -1 -1 -1 -1 -1 -1 -1)
     #(1 9 0 5 10 6 8 4 7 -1 -1 -1 -1 -1 -1 -1)
     #(10 6 5 1 9 7 1 7 3 7 9 4 -1 -1 -1 -1)
     #(6 1 2 6 5 1 4 7 8 -1 -1 -1 -1 -1 -1 -1)
     #(1 2 5 5 2 6 3 0 4 3 4 7 -1 -1 -1 -1)
     #(8 4 7 9 0 5 0 6 5 0 2 6 -1 -1 -1 -1)
     #(7 3 9 7 9 4 3 2 9 5 9 6 2 6 9 -1)
     #(3 11 2 7 8 4 10 6 5 -1 -1 -1 -1 -1 -1 -1)
     #(5 10 6 4 7 2 4 2 0 2 7 11 -1 -1 -1 -1)
     #(0 1 9 4 7 8 2 3 11 5 10 6 -1 -1 -1 -1)
     #(9 2 1 9 11 2 9 4 11 7 11 4 5 10 6 -1)
     #(8 4 7 3 11 5 3 5 1 5 11 6 -1 -1 -1 -1)
     #(5 1 11 5 11 6 1 0 11 7 11 4 0 4 11 -1)
     #(0 5 9 0 6 5 0 3 6 11 6 3 8 4 7 -1)
     #(6 5 9 6 9 11 4 7 9 7 11 9 -1 -1 -1 -1)
     #(10 4 9 6 4 10 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(4 10 6 4 9 10 0 8 3 -1 -1 -1 -1 -1 -1 -1)
     #(10 0 1 10 6 0 6 4 0 -1 -1 -1 -1 -1 -1 -1)
     #(8 3 1 8 1 6 8 6 4 6 1 10 -1 -1 -1 -1)
     #(1 4 9 1 2 4 2 6 4 -1 -1 -1 -1 -1 -1 -1)
     #(3 0 8 1 2 9 2 4 9 2 6 4 -1 -1 -1 -1)
     #(0 2 4 4 2 6 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(8 3 2 8 2 4 4 2 6 -1 -1 -1 -1 -1 -1 -1)
     #(10 4 9 10 6 4 11 2 3 -1 -1 -1 -1 -1 -1 -1)
     #(0 8 2 2 8 11 4 9 10 4 10 6 -1 -1 -1 -1)
     #(3 11 2 0 1 6 0 6 4 6 1 10 -1 -1 -1 -1)
     #(6 4 1 6 1 10 4 8 1 2 1 11 8 11 1 -1)
     #(9 6 4 9 3 6 9 1 3 11 6 3 -1 -1 -1 -1)
     #(8 11 1 8 1 0 11 6 1 9 1 4 6 4 1 -1)
     #(3 11 6 3 6 0 0 6 4 -1 -1 -1 -1 -1 -1 -1)
     #(6 4 8 11 6 8 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(7 10 6 7 8 10 8 9 10 -1 -1 -1 -1 -1 -1 -1)
     #(0 7 3 0 10 7 0 9 10 6 7 10 -1 -1 -1 -1)
     #(10 6 7 1 10 7 1 7 8 1 8 0 -1 -1 -1 -1)
     #(10 6 7 10 7 1 1 7 3 -1 -1 -1 -1 -1 -1 -1)
     #(1 2 6 1 6 8 1 8 9 8 6 7 -1 -1 -1 -1)
     #(2 6 9 2 9 1 6 7 9 0 9 3 7 3 9 -1)
     #(7 8 0 7 0 6 6 0 2 -1 -1 -1 -1 -1 -1 -1)
     #(7 3 2 6 7 2 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(2 3 11 10 6 8 10 8 9 8 6 7 -1 -1 -1 -1)
     #(2 0 7 2 7 11 0 9 7 6 7 10 9 10 7 -1)
     #(1 8 0 1 7 8 1 10 7 6 7 10 2 3 11 -1)
     #(11 2 1 11 1 7 10 6 1 6 7 1 -1 -1 -1 -1)
     #(8 9 6 8 6 7 9 1 6 11 6 3 1 3 6 -1)
     #(0 9 1 11 6 7 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(7 8 0 7 0 6 3 11 0 11 6 0 -1 -1 -1 -1)
     #(7 11 6 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(7 6 11 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(3 0 8 11 7 6 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(0 1 9 11 7 6 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(8 1 9 8 3 1 11 7 6 -1 -1 -1 -1 -1 -1 -1)
     #(10 1 2 6 11 7 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(1 2 10 3 0 8 6 11 7 -1 -1 -1 -1 -1 -1 -1)
     #(2 9 0 2 10 9 6 11 7 -1 -1 -1 -1 -1 -1 -1)
     #(6 11 7 2 10 3 10 8 3 10 9 8 -1 -1 -1 -1)
     #(7 2 3 6 2 7 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(7 0 8 7 6 0 6 2 0 -1 -1 -1 -1 -1 -1 -1)
     #(2 7 6 2 3 7 0 1 9 -1 -1 -1 -1 -1 -1 -1)
     #(1 6 2 1 8 6 1 9 8 8 7 6 -1 -1 -1 -1)
     #(10 7 6 10 1 7 1 3 7 -1 -1 -1 -1 -1 -1 -1)
     #(10 7 6 1 7 10 1 8 7 1 0 8 -1 -1 -1 -1)
     #(0 3 7 0 7 10 0 10 9 6 10 7 -1 -1 -1 -1)
     #(7 6 10 7 10 8 8 10 9 -1 -1 -1 -1 -1 -1 -1)
     #(6 8 4 11 8 6 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(3 6 11 3 0 6 0 4 6 -1 -1 -1 -1 -1 -1 -1)
     #(8 6 11 8 4 6 9 0 1 -1 -1 -1 -1 -1 -1 -1)
     #(9 4 6 9 6 3 9 3 1 11 3 6 -1 -1 -1 -1)
     #(6 8 4 6 11 8 2 10 1 -1 -1 -1 -1 -1 -1 -1)
     #(1 2 10 3 0 11 0 6 11 0 4 6 -1 -1 -1 -1)
     #(4 11 8 4 6 11 0 2 9 2 10 9 -1 -1 -1 -1)
     #(10 9 3 10 3 2 9 4 3 11 3 6 4 6 3 -1)
     #(8 2 3 8 4 2 4 6 2 -1 -1 -1 -1 -1 -1 -1)
     #(0 4 2 4 6 2 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(1 9 0 2 3 4 2 4 6 4 3 8 -1 -1 -1 -1)
     #(1 9 4 1 4 2 2 4 6 -1 -1 -1 -1 -1 -1 -1)
     #(8 1 3 8 6 1 8 4 6 6 10 1 -1 -1 -1 -1)
     #(10 1 0 10 0 6 6 0 4 -1 -1 -1 -1 -1 -1 -1)
     #(4 6 3 4 3 8 6 10 3 0 3 9 10 9 3 -1)
     #(10 9 4 6 10 4 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(4 9 5 7 6 11 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(0 8 3 4 9 5 11 7 6 -1 -1 -1 -1 -1 -1 -1)
     #(5 0 1 5 4 0 7 6 11 -1 -1 -1 -1 -1 -1 -1)
     #(11 7 6 8 3 4 3 5 4 3 1 5 -1 -1 -1 -1)
     #(9 5 4 10 1 2 7 6 11 -1 -1 -1 -1 -1 -1 -1)
     #(6 11 7 1 2 10 0 8 3 4 9 5 -1 -1 -1 -1)
     #(7 6 11 5 4 10 4 2 10 4 0 2 -1 -1 -1 -1)
     #(3 4 8 3 5 4 3 2 5 10 5 2 11 7 6 -1)
     #(7 2 3 7 6 2 5 4 9 -1 -1 -1 -1 -1 -1 -1)
     #(9 5 4 0 8 6 0 6 2 6 8 7 -1 -1 -1 -1)
     #(3 6 2 3 7 6 1 5 0 5 4 0 -1 -1 -1 -1)
     #(6 2 8 6 8 7 2 1 8 4 8 5 1 5 8 -1)
     #(9 5 4 10 1 6 1 7 6 1 3 7 -1 -1 -1 -1)
     #(1 6 10 1 7 6 1 0 7 8 7 0 9 5 4 -1)
     #(4 0 10 4 10 5 0 3 10 6 10 7 3 7 10 -1)
     #(7 6 10 7 10 8 5 4 10 4 8 10 -1 -1 -1 -1)
     #(6 9 5 6 11 9 11 8 9 -1 -1 -1 -1 -1 -1 -1)
     #(3 6 11 0 6 3 0 5 6 0 9 5 -1 -1 -1 -1)
     #(0 11 8 0 5 11 0 1 5 5 6 11 -1 -1 -1 -1)
     #(6 11 3 6 3 5 5 3 1 -1 -1 -1 -1 -1 -1 -1)
     #(1 2 10 9 5 11 9 11 8 11 5 6 -1 -1 -1 -1)
     #(0 11 3 0 6 11 0 9 6 5 6 9 1 2 10 -1)
     #(11 8 5 11 5 6 8 0 5 10 5 2 0 2 5 -1)
     #(6 11 3 6 3 5 2 10 3 10 5 3 -1 -1 -1 -1)
     #(5 8 9 5 2 8 5 6 2 3 8 2 -1 -1 -1 -1)
     #(9 5 6 9 6 0 0 6 2 -1 -1 -1 -1 -1 -1 -1)
     #(1 5 8 1 8 0 5 6 8 3 8 2 6 2 8 -1)
     #(1 5 6 2 1 6 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(1 3 6 1 6 10 3 8 6 5 6 9 8 9 6 -1)
     #(10 1 0 10 0 6 9 5 0 5 6 0 -1 -1 -1 -1)
     #(0 3 8 5 6 10 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(10 5 6 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(11 5 10 7 5 11 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(11 5 10 11 7 5 8 3 0 -1 -1 -1 -1 -1 -1 -1)
     #(5 11 7 5 10 11 1 9 0 -1 -1 -1 -1 -1 -1 -1)
     #(10 7 5 10 11 7 9 8 1 8 3 1 -1 -1 -1 -1)
     #(11 1 2 11 7 1 7 5 1 -1 -1 -1 -1 -1 -1 -1)
     #(0 8 3 1 2 7 1 7 5 7 2 11 -1 -1 -1 -1)
     #(9 7 5 9 2 7 9 0 2 2 11 7 -1 -1 -1 -1)
     #(7 5 2 7 2 11 5 9 2 3 2 8 9 8 2 -1)
     #(2 5 10 2 3 5 3 7 5 -1 -1 -1 -1 -1 -1 -1)
     #(8 2 0 8 5 2 8 7 5 10 2 5 -1 -1 -1 -1)
     #(9 0 1 5 10 3 5 3 7 3 10 2 -1 -1 -1 -1)
     #(9 8 2 9 2 1 8 7 2 10 2 5 7 5 2 -1)
     #(1 3 5 3 7 5 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(0 8 7 0 7 1 1 7 5 -1 -1 -1 -1 -1 -1 -1)
     #(9 0 3 9 3 5 5 3 7 -1 -1 -1 -1 -1 -1 -1)
     #(9 8 7 5 9 7 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(5 8 4 5 10 8 10 11 8 -1 -1 -1 -1 -1 -1 -1)
     #(5 0 4 5 11 0 5 10 11 11 3 0 -1 -1 -1 -1)
     #(0 1 9 8 4 10 8 10 11 10 4 5 -1 -1 -1 -1)
     #(10 11 4 10 4 5 11 3 4 9 4 1 3 1 4 -1)
     #(2 5 1 2 8 5 2 11 8 4 5 8 -1 -1 -1 -1)
     #(0 4 11 0 11 3 4 5 11 2 11 1 5 1 11 -1)
     #(0 2 5 0 5 9 2 11 5 4 5 8 11 8 5 -1)
     #(9 4 5 2 11 3 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(2 5 10 3 5 2 3 4 5 3 8 4 -1 -1 -1 -1)
     #(5 10 2 5 2 4 4 2 0 -1 -1 -1 -1 -1 -1 -1)
     #(3 10 2 3 5 10 3 8 5 4 5 8 0 1 9 -1)
     #(5 10 2 5 2 4 1 9 2 9 4 2 -1 -1 -1 -1)
     #(8 4 5 8 5 3 3 5 1 -1 -1 -1 -1 -1 -1 -1)
     #(0 4 5 1 0 5 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(8 4 5 8 5 3 9 0 5 0 3 5 -1 -1 -1 -1)
     #(9 4 5 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(4 11 7 4 9 11 9 10 11 -1 -1 -1 -1 -1 -1 -1)
     #(0 8 3 4 9 7 9 11 7 9 10 11 -1 -1 -1 -1)
     #(1 10 11 1 11 4 1 4 0 7 4 11 -1 -1 -1 -1)
     #(3 1 4 3 4 8 1 10 4 7 4 11 10 11 4 -1)
     #(4 11 7 9 11 4 9 2 11 9 1 2 -1 -1 -1 -1)
     #(9 7 4 9 11 7 9 1 11 2 11 1 0 8 3 -1)
     #(11 7 4 11 4 2 2 4 0 -1 -1 -1 -1 -1 -1 -1)
     #(11 7 4 11 4 2 8 3 4 3 2 4 -1 -1 -1 -1)
     #(2 9 10 2 7 9 2 3 7 7 4 9 -1 -1 -1 -1)
     #(9 10 7 9 7 4 10 2 7 8 7 0 2 0 7 -1)
     #(3 7 10 3 10 2 7 4 10 1 10 0 4 0 10 -1)
     #(1 10 2 8 7 4 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(4 9 1 4 1 7 7 1 3 -1 -1 -1 -1 -1 -1 -1)
     #(4 9 1 4 1 7 0 8 1 8 7 1 -1 -1 -1 -1)
     #(4 0 3 7 4 3 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(4 8 7 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(9 10 8 10 11 8 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(3 0 9 3 9 11 11 9 10 -1 -1 -1 -1 -1 -1 -1)
     #(0 1 10 0 10 8 8 10 11 -1 -1 -1 -1 -1 -1 -1)
     #(3 1 10 11 3 10 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(1 2 11 1 11 9 9 11 8 -1 -1 -1 -1 -1 -1 -1)
     #(3 0 9 3 9 11 1 2 9 2 11 9 -1 -1 -1 -1)
     #(0 2 11 8 0 11 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(3 2 11 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(2 3 8 2 8 10 10 8 9 -1 -1 -1 -1 -1 -1 -1)
     #(9 10 2 0 9 2 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(2 3 8 2 8 10 0 1 8 1 10 8 -1 -1 -1 -1)
     #(1 10 2 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(1 3 8 9 1 8 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(0 9 1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(0 3 8 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)
     #(-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1)) )

